The tizen/download.tizen.org file tree is about 48 Gbytes on R/W disk.
As a squashFS RO file tree it is about 19 Gbytes.
It should fit on a "5 DVD set" as a multi-volume archive.
When used as the "base" RR layer of an auFS stack, will allow the use of wget --mirror command to track the contents of the Tizen download sub-domain without downloading the initial 48 Gbytes.
Since the Tizen download sub-domain is rate-limited, this can save you about 3-1/2 days of watching wget work.
PM me for details.